One benefit of learning a trade versus earning a four-year degree is (A. A wider range of career advancement for opportunities (B. Some trades are in more demand than certain degrees (C. A higher lifetime earning potential (D. Typically there are more opportunities for advencement
Some trades are in higher demand than some degrees right now. Consider welding and history. History degrees are not in extremely high demand (which is a possible 4-year degree) but welding is in high demand (doesn't require a 4-year degree).